Caster wheel



FIG. 1 is a perspective view of the caster wheel embodying theinvention;

FIG. 2 is a front view thereof (the top, bottom and rear views being amirror image); and,

FIG. 3 is a side view thereof (the outer side being a mirror image).

The broken line showing of a wheel brace is for illustrative purposesonly and forms no part of the claimed design.

The ornamental design for a caster wheel, as shown and described.